Metal seal for paper bags



P 1932- H. G. EYNON ET AL 1,875,919

METAL SEAL FOR PAPER BAGS Filed Aug. '7, 1929 2 Shets-Sheec 1 Sept. 6, 1932. H, EYNQN ET AL 1,875,919

METAL SEAL FOR PAPER BAGS Filed Aug. '7, 1929 2 Sheets-Sheet 2 ill,

Patented Sept. 6, 1932 "UNITED sr rss Parent assie HAROLD e. EYNON AND WALTER :r. KINDERMAN, or PHILADELPHIA, PENNSYLVANIA,

'ASSIGNORS T0 INDUSTRIAL DEVELOPERS, INQ, OF PHILADELPHIA, PENNSYLVANIA, w

A CORPORATION OF DELAWARE METAL seen ron'rnrnn BAGS Application filed August 7, 1929; Serial No. 384,098.

'Our invention relates to a fiexiblemetal tie for useat the open end of a paper bag in order to efi'ect a folding closure of the bag,

\ the metaltie folding with the paper and by reason of itsstifiness holding the paper in its folded positiont Rolling and folding are viewed as substantially the same for present purposes.

A purpose of our invention isto provide a metal tie of the character indicated that wili be easy and inexpensive to manufacture and to apply to a bag by machinery or by hand either during or subsequent to the manvufacture of the ba and ada ted to the needs of service. i

A further purpose is to provide a metal tie of the character indicated that will always be contained within the dimensions of the bag.

A further purpose isto provide a bag with "a metal tie of the character indicated that will .be contained within the width of and on the outside of one of the long sides of the bag.

A further purpose is to provide a metal tie of the character indicated adapted to easy machine or hand sift-proof closure and after closure to hand opening and subsequent siftproof'reclosure by machine or by hand equally well at any point along a range of closure depending upon a variation in the volume .of i aterial inside the bag.

A further purpose is to provide a type of metal tie that can be readily opened and closed without rupture of the bag structure or tie cover at either top or bottom of the tie.

A further purpose is to provide metal tie upon the outside of the long side of a bag in which the tie presents side portions parallel to the edges of the long side and one or more cross portions preferably at top and bottom for lessening the stress upon the material of the bag when folding and unfolding the closure. 7

We have elected to show a few only of the many different forms of our invention,

selecting forms that are practicaland eiiicient in operation and which-well illustrate the principles involved.

taken upon the line adapted to be used upon the bag of Figure l in accord with our invention.

Figs. 3a-8g are modifications of the metal tie that may be used.

Figure 4 shows a cover sheet for use in holding the tie of F igure?) to place upon the bag of. Figure 1.

Figure 5 isa fragmentary front elevation cor-responding generally to a portion of Figure 1 but showing the tie and its cover both fastened to place, the coverbeing partially broken away to disclose the tie.

Figure 6 is a section taken upon the line 66 of Figure 5. I l j 7 Figure 7 is a view corresponding generally to Figure 5 but showing a somewhat diifen ent form from that of Figure 5. V

Figure 8 is a section taken upon the line 88 of Figure 7.

Figure 9 is a section corresponding to F ig ure 8 but showing the-bag as having its long sides spaced apart instead of being relatively close together as in Figure 8.

Figure 10 is a fragmentary side elevation partly sectioned showing a bag after it has been filled with the 'upper edges of thelong sides presented together preparatory to making a folding seal.

Figures 11,12 and 13 are views correspond ing generally to Figure 10 but showing progressive stages of folding closure, the bag being shown closed in Figure 13.

F'gure 14 is a view corresponding generally to Figure 13 but showing a lesser volume of material inside the bag than is shown in Figure 13 for example the bag of Figure 13 initially perhaps containing unground cofi'ee' beans while thebag shownin Figure 14: contains the same cofiee groundand therefore of somewhat less volume than in Figure 13.

Like numerals refer to like parts in all figures. i l

Describing in illustration and not in limitation and referring to the drawings Our flexible metal tie for use in closing bags is believed to have perhaps its widest applisee that is due way,

eese 26 when cation with bag filling and closing machines but is also very convenient for closing bags by hand wide application with grocers and others who have: misjcellan'eoeus paper bags re fill and close.

a While the tie is for use with any suitable type of bags it L tageously with paper bags that have 5 rectangular contour and we have for this reason illustrated it applied tothis type of bag;

The illustrated bag" may be lined or enlined. In most of the illustrations it is of-the kind used for acking eoflee',:doub1e, inc1uding an inside lining 20, and an outside bag- 21 the-linin bein esaaliy or wax'papen imper- In Figure 9 itis unlined. The bags haveshort and-rang sides that extend upwardly from a're'ctag-ular bottom 22 and therefore give the bag a rectangular transverse sect-ion when extended;

The bags are creased for folding flat when empt the short sides reased lon itudinaL 1y at 23 and turned inward between the long sides which are pressed together the in wardly' folded short sides; each short side th'nhaving one-half of its width against one of the long sides and the other half of its width against the other long side.

One of the'l'oiig sides of the bag out lower vious to moisture.

else are ether at sarigsrs i am 5'ii1 order to make the'bag more easy to teen and we preferably our metal tie 25 to the long applying it aeross the out ide and he top'edge (Figures 5" and 7 ease a that will who'lly' contai-n*ed within thelateral dimensions or the bag vitae-er the has be empty er fineeand fasten the a to plates by see er part er its area glass to the outside of theba' gi and anetherpart of its area eaten-11g the tie. l 1 a When a bag has been filled for closure the ends ofthe bag extend upwardly a considerable distance beyond the filling mater'ial, a

distance sufiicienjt for afolding closure; The closure can be effected by rolling It is our intention to include froll or rolling within the iiieaning here of the words fold,or fold ingfl: t v o The metal tie 25' may have widely variant forms of which a few only are shown in Fig urjes 3%89; It is illustrated as formed of wire,- plain, flattened to give extra width or bent upon itself for the same purpose, for ex.-v ample, as in Figures 3a; 3?) or 3d, and as cut from sheets-of metal, as in Figures 3', 3a,; 3; or 3g}; and as out from foramin'ous material as in Figure 3c.

and should therefore also/find a a closure of the bag and should have such width as is needed to' provideadeq-uate stiffis perhaps used mostv advanness for maintaining the fold and for avoiding undue tendency for the ends of the side portions to tear the material of the bag during folding" or "unfolding. The transverse portions 28 are preferably located at the ends of the side portions in that when thus located they greatly lessen the tendency for the ends ojf-the sid'e' portions-tote'ar the material of the bag during folding or unfolding.

The side'sma'y be of roundwire, for exam-o ple', as in Figures3b and 3d, with transverse portions. of spaced wires as in Figure 3?) or with flattened transverse .por-tions as in Fig- 7 ure 3d.

The forms offer different advantages; In the tie shown in Figure 3 the side portions 27 are connected at top and bottom with the transverse portions 28 and the .cross pieces at top and bottom are in positions to prevent the ends of the'side piecesifrom exerting undue pressure against the paper during folding or unfolding,v thereby preventin rupture of the paper at'these ends.

In Figure 5 we make the member 25 of width less thanthe width of the long side of the bag, thus leaving marginal spaces '29 outside the outer edges of the tie for engagement and gluing to the coves sheet 26 In Figure 7 we give the metal tie the width bag and hold the mem of the long side of the her to place by the cover sheet either by using a sheet also of the width of tending, however, suitable marginal distance above and below the tie, merely gluing he sheet atthe upper and lower margins 30 and 31 and over the interior 32 of the frame or more desirably by using a sheet wider than the bag extendin indicated at 33, Figure 9, to overlap and glue to tl'ieshort. sides of the bag I In Figure 86 the insert comprises a U mem 7 her having vertical sides and a close connection at the bottom corresponding generally to the form of Figure 3 without the top cross 7 portion.

The wire tie 'can' be adapted to any of the shapes desirable, flattening or doubling or reinforcing parts which require extra strength or a different distribution of the metal or of the stiffening character. Figures 3a, 3b and 3d are not intended to cover the subject, but to suggest forms merely.

.metal closure the bag e::- V

V Figure shows a form like Figure 36 except thatthe cross 'portion'between the paral lel sides is intermediate thei length of the sides instead of near the bottom thereof, the metal member comprising an H.

In Figure 3g the cross connection between the side portions is diagonal instead of perpendicular to the sides, the final form comprising an N.

It will be understood that the different forms of closure member shown are few only of many others, all of which may be used interchangeably according to circumstance or difference in taste or whim.

When the bag has been filled the long sides are presented together along the upper edges forming a compressed strip 34 just above the upper edge of the insert member 26 in the position shown in Figure 10, the short sides at their upper ends being folded in between the long sides.

The strip 34: at the top of the bag now includes the two thicknesses of bag and lining which is folded down to successive positions indicated in Figures 11, 12 and 13, Figure 13 showing the bag in its position of final closure and the stifiness of the metal insert holding the fold closed.

It will be understood that the bag may be opened and again sealed by closure upon a different volume of material either by a housewife or a grocer. For example the grocer may receive the bags filled with coffee beans and open the bag, grind the cofiee, pour it into the bag and reseal the bag.

= but it is not our hen the ground coffee is put back in the bag, the bag will not be as full as with the unground coffee beans and in effecting closure the folding is therefore continued tosome little distance further than when the bag contained the beans. far enough down into the top the sealwill be equally eliicient at both of the different hei hts.

It will be evident that the side bars alone if permanently fastened to the outside of the bag even without any direct, transverse or other cross connection would still be valuable in the sealing of the bag as the ends of the seal will be taken care of by the side bars folded with them; though lacking part of the benefit of our invention this would still be capable of giving comparatively good results.

It will be evident also that various means of permanent attachment of the tie (or separated tie members) can be used whereby the tie isanchored sufiiciently with respect to the bag so as reliably to fold with it. V5 e have illustrated the best form of attachment known to us, as required by the statute, in the form of stickers intended to pass over all or any desired or required part of the tie (or tie elements) so as to hold the tie to the bag; intention to suggest that stickers must be used for this purposenor that where they are used other forms of attachment may not be used as accessories to the StICkBI'S.

If the tie extends It will be evident that where permanent fastening means is used it is not intended to imply that the fastening means'must be in- I capable of separation from the bag nor that it be a tie member separate from the tie itself. For example, this language would be satisfied by use of such devices as clips 35 about or prongs (36) through the paper with or without supplementary attachment means of the bag, much in the position ofthe paper 33 in Figure 9 when glued, or pinch over thetop of the bag but the prongs would pass through the bag.

In view ofour invention and dISClOSUIG Variations and modlfications to meet indlvidual clips or prongs pinch tightly against the V whim or particular need will doubtless be- 7 come evident to others skilled in the art, to obtain all or part of the benefits of our invention without copying the structure shown,

and we, therefore, claim all such in so far as they fall within the reasonable spiritand scope of our invention. Y

Having thus described our invention, what weclaim as new and d ters Patent-is a 1. A bag, a closure tiesecured permanently to the outside of the bag and comprising a metal tie tween the side portions at the top ends therethe margins.

sire to secure by Lethaving side portions parallel to and near the bag edges and a transverse con- 4. A bag, ametal tie secured to the outside edges near the open end of the I 6. A bagamet'al tie on the outside of, the bag nearltheopen. end thereof having side portions and atransverse connection'therebe tween, the side portions being located paral- 15181 and near the bag, edges, and a sticker having inar gin portions along the bag edges beyond the tie edges andgluedto the outside of the bag edges and outside tie edges, the

' sticker covering the .tie intermediate the mar- 7. A .baghaving when open a rectangular sectional contour, creased for folding flat with the short sides adapted to fold inward between the long sides, a metal tie fastened on V :;the outside of one of the long sides near the open: end ,thereofand having side portions and across ,oonneetionbetween the side port1on s ,,-thegs1 de port ons extending parallel and-near the, outside edges ofthe long side and a sticker holding the insert to the bag. I

8. A bag having when open agrectangular seetional contour. creased for foldingfiat with the short sides adapted to fold inward between ,th'e long sides, a metal tie fastened on the outside otoneof the longsides near the open endthereof and having side per-- tions and across conneotionbetweenthe side portions, the side portions extendingparallel and near, {the outside edges of the long side and a sticker holding the tie to the bag, the

bag having one long side recessed at its open end ascon pared,;tothe end of the other, the recess being upon the side of the tie.

9; A'Joag having when 7 open a rectangular sectional contour and: long sides and short to sides creasedforadantation to fold the short sides inbetween the. long sides,; a metal tie 7 having side portions along the edges of the.

' long sides near the open ends of the bag and 0 a stieker over thetie having end portions extendingbeyond the tie sides and vfastening to theshort sides oithe bag. r

10. I A- bag vo;t,;rec tangular contour when 7 open and having long sides and. short sides with-open ends,;a metal rectangular tie upon oneofo; the long sides near the open end there-,- of and astiekerand margins above and lee-J lowthe tie, and .gl u1ng .to the paper along the margins andintheinterior. or" the tie, 11. A bag, a metal tie outside the top of 1 the;,bag,.extending substantially from side to sideof the bag when thebagis' closed, and longitudinallyof the bag atithe sidesqto anextent permitting the :tie to be foldedwith, the bag and, fastening means, for the, tie engaging the bag andperrnanently holding the, tie to the bag. gv I HAROLD GrEYNON, WVALTER J KINDERMAN; 

